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Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual User Manual

Page 308

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User’s Manual – GPS Mode

298

• You start a survey with your base on an

autonomous position. You occupy one or more
control points during the survey, but you do not

have the proper north, east, elevation coordinate

in the field. You get back to the office and you
calculate the proper coordinate for these points

by some method such as an adjustment of post

processed baselines, or from another crew’s job
file measurement to the same point. You then

wish to solve a localization using these points as

control.

1. Open the Survey > Import GPS Control screen.
2. Select the points you wish to make into GPS control

points. You must select points that have geodetic

(LLH) coordinates.

3. Select a method to input the source for the accurate location of the

control point

. Your choices are: NGS Data Sheet .txt file; OPUS

Solution Results .txt file

; Key In Coordinate

Note: To use an NGS data sheet, download the data sheet for one or

more desired points from the NGS web site, open the *.htm data

sheet files using your web browser, and then click on File > Save As.
Specify to save the file as a plain text file, and make sure the file has

a .txt extension. To use an OPUS solution results file, open the email
containing the solution report with your email editor, and then click

on File > Save As. Specify to save the file as plain text, and make sure

the file has a .txt extension. Then copy any desired .txt files to the
data collector; the Survey Pro Jobs directory is the default location,

but you may place these files anywhere you wish on the data
collector.

4. Tap Next>

5. For each point selected on the previous screen, enter the source

for the accurate local coordinate. If you are using an OUPS

solution report or an NGS data sheet, pick the desired item from

the drop down list. If you want to see additional details on any
item, tap Details. If you are keying in each local coordinate,